PHP code example of hartman / vtt-vivid

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

hartman / vtt-vivid example snippets

use WebVTT\VttReader;

// Load the WebVTT file
$vttFile = 'path/to/your/file.vtt';
$reader = VttReader::fromFile($vttFile);
$reader->setStrict(true);

try {
    $reader->parse();
    echo "The WebVTT file is strictly valid.\n";
} catch (Exception $e) {
    echo "Strict validation failed: " . $e->getMessage() . "\n";
}

use WebVTT\VttWriter;
use WebVTT\DOM\VttCue;
use WebVTT\DOM\VttFile;

// Create a new VttFile instance
$vttFile = new VttFile();

// Add a cue to the file (start time, end time, text)
$cue = new VttCue(1.0, 4.0, 'Hello, world!');
$vttFile->addBlock($cue);

// Write the file to disk
$outputFile = 'path/to/output/file.vtt';
$writer = new VttWriter($vttFile);
$writer->write($outputFile);

echo "Subtitle file created at $outputFile\n";

use WebVTT\DOM\VttCue;
use WebVTT\DOM\CueText\AnnotatedElementNode;

$cue = new VttCue(0.0, 5.0, '<v Bob>Hello <b>there</b></v>');
foreach ($cue->getContentNodes() as $node) {
    if ($node instanceof AnnotatedElementNode) {
        echo $node->getAnnotation(); // "Bob"
    }
}

$cue = new VttCue(0.0, 5.0, '');
$cue->setContentNodes([ new TextNode('A & B'), new ElementNode(CueTag::BOLD) ]);
echo $cue->toCueText(); // "A &amp; B<b></b>"

use WebVTT\Parser\CueTextParser;
use WebVTT\Validation\CallbackValidationReporter;

$warnings = [];
$parser = new CueTextParser(new CallbackValidationReporter(
    function (string $w) use (&$warnings) { $warnings[] = $w; }
));
$nodes = $parser->parse('<c.green>hi</span>');
// $warnings now describes the colour hint and the unauthorized </span>

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